Nut lock



June 18, 1929. P. DHAENENS NUT LOCK Filed Oct. 29, 1927 INVEN TOR. P5726 Ofl/M'A I/VJ.

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m 61m ATTORNEYS.

Patented a... 18, 1929s.

UNITED/STATES PETER :DHAENENS, or MOLINE, ILLINOIS.

NUT Loon; g

, Application liled bctober 29, 1927. 7 Serial No. 229,719.

vide improved means for locking a nut,

which is not'dependent upon, any 'coopera tion'from the 'bolt upon which the nut is threaded, the operating action being directly between the nut and "the work throughwhich the nut-supporting bolt passes.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawings forming a part of the present specification, with the undere standing, however, that the invention is not confined to any strict conformity with the, showing of r the drawings, but may be changed or modified so long as such changes or modifications mark no material departure from the'salient features ofthe invention as claimed. 7

In the drawings:

Figure 1 shows the nut embodying the present invention, in side elevation and as applied. a

Figure 2 is a top plan view of the portion thereof belng in section.

Figure 3 is; asection taken upon thehne 33 of Fig. 2.

Figure 4 is a section taken upon the line 4--40f Fig.1.

Figure5 is a detailed perspective view of a nut equipped with the locking device embodying a portion of the invention.

Referring now to the drawings in detail, wherein like numerals of reference indicate corresponding parts throughout the several views, the numerals lindicateapair of plate members or other bodies through which a nut, a

bolt 2 is passed, the shank of the bolt being.

provided at one end with the usual screw threads 3. e

The nut structure embodying the present invention is indicated by the numeral land is provided in one sidewith the recess 5, which recess extends transversely of theside and, as shown, joins an upwardly extending recess 6 which opens through the top face of the nut and is arranged in close proximity to ,8 from one of I the which the recesses are formed.

sidesadjacent the side in PATENT (OFFICE-Y I In thebottom T of the recess, directly in linefwith the upwardly opening passage 6, an aperture Sis formed which passes downwardly through the body ofthe nut and i opens out through the bottom face thereof. 7

As shownin Fig. 3, this passage 8 is of'increased and constant diameter throughout directly below the upper end, as indicated per portionthereof a shoulder 10.

bythe numeral 9, thusjforming in the up- Extending upwardlythrough the passage g the lower end thereofis a pinll, the lower end of the pin being of a diameter to snugly "fit in the enlarged lower portion 1 9' of the passage as indicated at 12. Surroundingthe pin 11 and housed in the en,- larged portion 9 of the passage is a coil spring13, the lower end of which rests upon the enlarged end or head 12 of the pin while the upperend bears against theshoulder 10.

The upper end of the pin 11 is bent to 'extend at right angles to the passage 8 thus forming an arm 14 which prevents the pin from dropping through the passage 8. This arm is normally housed in the recess 5 when the nut 1s 1n operatlve pos1t1on,'as shown in Fig. 1.

When in use,' that was the piece of work 1 against which the nut must bear when tightened upon the bolt2, is provided with an annular series of recesses 15 spaced the proper distance from the bolt hole to receive the head '12 of the pin 11' when'the nut has beentightenedup a sufiicient dis pin head tobearagainst 1 J tance to permit the the surface of the work. I While the nut is being tightened to position, the arm 14 is swung from its engaglng recess 5 and the so that the arm can be swung to engage over the top face of the nut thus drawing the head 12 into theenlarged portion9 of the passage 8 where it will beheld free from pin 11 drawn upwardly into the passage 6 contact with the work piece luntil the nut has been sufficiently tightened, whereupon the pin can be released and permittedto' engage in the nearest one of the recesses 15.

It will of course be understoodthat upon removal of the nut 4:, the reverseinanipulation of the pin 11 must be performed. The arm 14: is greater in length than thedistance between the recess 6 and the adj acent'side of the nut 4, whereby to arrange its free end beyond said side when it is'in' contact with when it is desired to release the pin 11 for ner in which the top faceoff-the nut, and thus permit it to be Conveniently grasped and manipulated to carry it into registrationjwith the'recess project-ion into oneof the recesses 15.

Figure 6 shows'in detail-perspective the" nut per se, showing more clearly the manthe head portion of thepin'll proj ects from the bottom face (thereof.

From the forego ng present invention nay be readily employed in connection with anybolt of the proper size and from this it will be understoodthat the manufacture, of the present invention will be less expensive than- -isthe case with the majority of locking devices'wherein es pecially constructed bolts must also he 6111 ployedi in connectionwith the nut. 7 Havingthtis described invention, what Iclaim is V A- nutprovidedpin one side thereof with rightangularl'y related -recesses,'one recess extending transversely of said side and the other being arranged ad a'centanOther side description, it will be readily seen that the. nut embodying the of thenut and extendingfrom. one end of said" transverse recess to the top face of the,

nut, the nutbeing also provided with a pas- ;sage arranged in alinement with said other recess and extending from the bottom face Wall of said transverse recess to the bottom sage at the upperend thereof, a pin having a head at its lower; end and slidably arranged in said passage, a spring surrounding sa-idpin and bearing against said head and, shoulder, and an arm carried by theupper end of said pin'and housed in said transverse recess'when the pin is in projected position and adapted to contact with the top race of the nut when the pin'is in retracted position, and said arm being greater in recess'and said other'side of the nut so as to arrange the free end portion thereof beyond retracted.

7 said other side of the nut when the pin is of the nut, a shoulder arranged insaidpas- V length than'the distance between said other :In testimony whereof I afiix my signature.

PETER Q'DHAENENSJK 

